"We have waited a long time for it, but have always been confident because we thought we had a good case."
He said the conditions would require an average of $1 million to be spent on each of the farms.
"That's really turbo charging them and also upgrading them from an environmental point of view. That's quite significant expansion."
Milk New Zealand would now talk to the receivers about settling the transaction and form a joint venture company with LandCorp to manage the farms. It would also have to buy shares in Fonterra for milk processing.
The approval also included strong conditions which, if they were not met, would require Milk New Zealand to sell the farms. Such conditions could not be imposed on a domestic purchaser.
He said the negative reaction to the purchase was unwarranted and talk about opening the floodgates to Chinese companies buying large land tracts was scaremongering.
"This has been the most-discussed land transaction in the history of New Zealand. China will still be one of the smallest owners of New Zealand farmland. It's 16 farms and there are more than 10,000 in New Zealand."
Sir Michael Fay - the leader of a rival bid by a consortium that had challenged the original consent - said the deal set a precedent that would "open the farmgates'' for a flood of other overseas investors.
He said the group was disappointed and its iwi members were "justifiably angry''.
See the Overseas Investment Office's new recommendation here.
See a copy of the OIO's decision summary here.